We got two immunopotentiators , ginsenoside-F3 and MTC-O1, from 26 ginsenosides and 56 MDP-Taxol conjugates by mouse spleen cell proliferation model and mouse peritoneal macrophages TNF-a model. Panax ginseng has been a valuable and important tonic medicine in many Asian countries such as Korea, China, and Japan. The main components of P ginseng are known to be the ginsenosides that are divided into two types, protopanaxadiol ginsenosides (PPDGs) and protopanaxatriol ginsenosides (PPTGs), by structural clas...